LECTUS Dylan Flaherty, marketing clerk for TipTop Marketing Agency, recorded the following information for last year: Customers 345 406 310 Month January February March April May June July August September October November December 389 446 355 484 334 540 432 404 Customer Service Costs $525,528 542,630 450, 180 662,000 528,850 655,260 542,450 679,300 485,919 689,480 627,380 540,900 He would like to be able to estimate customer service costs using the number of customers as the basis for estimation. However, because he has never taken a course in managerial accounting, he does not know how to set up a cost equation. He has therefore approached you for help. Required: 1. Set up a cost equation for monthly customer service costs using the high-low method. 2. Using the equation from part (1), compute the estimated customer service costs If the number of customers is expected to be 590